System facilitating operations to be carried out on a ship

ABSTRACT

To permit carrying out work on a ship&#39;&#39;s hull, such as sand cleaning, painting etc. under unfavorable weather conditions it has been necessary hitherto, - if work could be performed at all - to provide for temporary weather protection by way of tarpaulins and like means. The system herein described which permits such operations to be carried out on ship&#39;&#39;s hulls independently of weather conditions, comprises roof elements, wall elements and end wall elements so mounted as to form heatable premises separated from ambient air.

United States Patent 1191 Jonsson 154] SYSTEM FACILITATING OPERATIONS TOBE CARRIED OUT ON A SHIP [75] Inventor: Carldavid Jonsson, Kinstad,Sweden [73] Assignee: Svenska Alucrom AB, Linkoping,

Sweden [22] Filed: Apr. 5, 1971 [21] Appl. No.: 131,042

[30] Foreign Application Priority Data June 16, 1970 Sweden ..83l0/70[52] U.S. Cl. ..182/36, 182/129, 182/142 [51] Int. Cl ..E04g 3/14 [58]Field of Search). ..182/129, 150, 47, 36, 37; 52/64, 72, 143

[56] References Cited UNITED STATES PATENTS 2,744,581 5/1956 Cooper..52/64 [11] 3,724,594 1 1 'Apr. 3, 1973 Gardner 182/37 3,121,470 2/1964Stone ..l82/l29 3,007,541 11/1961 Mast ..182/l29 2,470,337 5/1949Campbell ..l82/l29 Primary Examiner-Reinaldo P. Machado Att0meyJohnLezdey [57] ABSTRACT To permit carrying out work on a ships hull, suchas sand cleaning, painting 'etc. [under unfavorable weather conditionsit has been necessary hitherto, r

if work could be performed at all to provide for temporary weatherprotection by way of tarpaulins and like means. The system hereindescribed which permits such operations to be carried out on ships hullsindependently of weather conditions, comprises roof elements, wallelements and end wall elements so mounted as to form heatable premisesseparated from ambient air,

4 Claims, 3 Drawing Figures SYSTEM FACILITATING OPERATIONS TO BE CARRIEDOUT ON A SHIP This invention relates to a system which permits surfacetreatment operations, such as sand cleaning, painting etc., to becarried out on a ships hull independently of weather conditions andwithout encroaching upon the other operations on the hull.

For outer and inner surface treatment and painting of hulls lying inclocks it has been necessary hitherto to erect scaffoldings mainly forthe purpose of performing the surface treatment. Naturally, this impliesgreat expenditure of cost and time. Nowadays, higher requirements thanbefore are placed on the surface treatment with the use of new materialswhich necessitate controlled air temperature and moisture duringpreliminary operating phases, application as well as drying and curing.Painting and like operations could be carried out only under certainweather conditions.

Also, the surface treatment and painting operations often encroach uponother work and thus jeopardize the established sequence of otheroperating procedures. The ever shorter building times in the docks havemade it necessary to provide a more precisely timed painting programme.

The object of this invention is to solve the problems outlined'above, toeliminate the'necessity of setting up scaffoldings and to permit acomplete screening of the portions of the ships hull being treated.

The characteristic features of the system suggested by the presentinvention reside in that the system comprises roof elements to be placedon the deck of the ship's hull, wall elements to be disposed along theside of the ships hull and on which there are arranged crane railssupporting work platforms which can be moved and raised and loweredalong the sides of the ships hull, and end wall elements to be mountedbetween the deck or shipsside and the roof elements or wall elements,and in that the roof, wall and end wall elements enclose heatablepremises separated from the ambient air.

A preferred embodiment of the system will be described more in detailhereinbelow with reference to the accompanying drawing in which FIG; 1schematically shows a system set up in conjunction with a ships hullshown in cross section;

FIG. 2 is a side view of the system.

FIG. 3 is a cross sectional view in large scale of the system of thisinvention mounted at a ships hull.

In the drawing, 1 designates the ships hull, 2 the deck, 3 the shellplating and 4 longitudinal bulkheads. The clock is designated 5. Thesystem comprises roof elements 6 which are supported on the deck 2 bymeans of stands 7. One of the central sections is formed as a site shed8 housing for instance at a lower level repair shop and foreman officeand at an upper level a room equipped for central paint mixing and accommodating paint pumps by which paint is dispensed to the various partsand premises of the ship. At the same level there is also a platformcarrying paint supply containers 9. All roof elements can be raised withthe aid of a lifting yoke 10. The wallelements 11 positioned along theships side are provided with crane rails 12 on which run over-headcranes 13 which carry raisable and lowerable work platforms 14 incables. Alternatively, the crane rails can be suspended in bracketsfastened in the gutterway of the ship. In that case the crane rails canextend throughout the length of the ships hull, and the work platformscan be used for carrying out work along the ships sides before, duringand after the surface treating operation. The wall elements 11 havewheels 15 with which to roll on the bottom of the dock when they aremoved along the ships side.

To provide the contemplated screening of the portions of the ships hull1 being surface treated latticework end wall elements 16 are placed atthe ends of the roof elements 6 in upright position on the deck 2, saidend wall elements being divided into sections and covered with asuitable cloth or sheet metal material.

End wall elements consisting of collapsible latticework frames coveredwith cloth or sheet metal material are placed also at the ends of thewall elements 1 1, and said end wall elements are swung inwards intoengagement with the ships side whereby premises entirely separated fromambient air are obtained.

If necessary, hot air can be blown into the premises inside the screensso that atemperature suited to the type of work concerned and thesubsequent drying and curing process is attained.

As seen in FIG. 3, which is a cross section in larger scale showing partof a slightly modified embodiment of the system mounted at a shiphull,-the wall elements include frameworks constituted by uprights 16and longitudinal beams and sheating 17. Struts 18 are attached to theuppermost longitudinal beam of the wall elements and said struts are inturn attached to posts 19 which can be temporarily welded or otherwiseaffixed at the gutterway of the ship hull. In the preferred embodimentshown in detail on FIG. .3 the crane rail 12 is carried by the struts13.

As can be further seen from FIG. 3 the outer edge of the outer roofelement 6 has a retractable portion 20 which covers the outer portion ofthe ship deck and said portion carries hinged flaps 2,1- which close theopening between the upper edge of the wall element 11 and theretractable portion 20.

The roof elements 6 include frameworks i.e. beams 21, and sheating 22and are carried by the stands 7.

When the roof elements are adapted to be moved by .ship. The roofelements accordingly one by one can be rolled along the deck.

I. An apparatus for housing workmen for carrying out the surfacetreatment of a ship's hull comprising roof elements to be placed on thedeck of the ships hull, wall elements to be disposed along the side ofthe ships hull, crane rails on said wall elements, work platformscarried by said crane rails which can be moved and raised and loweredalong the sides of the ships hull, and end wall elements at the end ofsaid wall elements and mounted between the ships side and the roofelements, whereby the roof, wall and end wall ele- What I claim anddesire to secure by Letters Patent elements consist of collapsiblelattice work frames having an outside covering.

4. The apparatus of claim 1 including partition means forming separatework areas.

1. An apparatus for housing workmen for carrying out the surfacetreatment of a ship''s hull comprising roof elements to be placed on thedeck of the ship''s hull, wall elements to be disposed along the side ofthe ship''s hull, crane rails on said wall elements, work platformscarried by said crane rails which can be moved and raised and loweredalong the sides of the ship''s hull, and end wall elements at the end ofsaid wall elements and mounted between the ship''s side and the roofelements, whereby the roof, wall and end wall elements form enclosedheatable premises separated from the ambient air.
 2. The apparatus ofclaim 1, wherein the roof elements, the wall elements and the end wallelements are movable in relation to the ship''s hull.
 3. The apparatusof claim 1, whereiN said end wall elements consist of collapsiblelattice work frames having an outside covering.
 4. The apparatus ofclaim 1 including partition means forming separate work areas.